Peewee V4

[michael-au]

Pistons are almost done, progress is slow at the moment

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[michael-au]

Finished off the pistons today

Set up to make sure the hole for the gudgeon pin is parallel to the vice, so the pocket for the con rod can be mill out

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All the pistons have the pocket mild out

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Machined the spigot off the pistons, and now they are ready for the rings

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3D printed the templates for cutting out the head gaskets

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[Cogsy]

Coming along nicely by the looks. What are you using for the head gasket material?

 

[michael-au]

Coming along nicely by the looks. What are you using for the head gasket material?

I used High Temperature Gasket Material 300mm x 240mm x 0.25mm

I found it on eBay http://www.ebay.com.au/itm/High-Tem...25mm-/301114252015?hash=item461bcedaef&_uhb=1

 

[Cogsy]

Thanks Michael, that stuff looks good. I've got some 0.3mm Teflon sheet I'm planning to use for the head gaskets. I used the stuff on my Rupnow vertical and it's relatively easy to cut and punch. I might grab a sheet of the stuff you're using and compare.

 

[michael-au]

Fixture for machining the con rods

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[michael-au]

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Rods and split bearings done

Have not been doing much in my work shop for the last 7 months
Was a full time career for my wife until she passed away in August
Starting to try and get back in to it slowly, sometimes hard to find motivation

 

[Cogsy]

My condolences on your loss Michael. I can't imagine how hard that must be.

Your rods look great, as usual. I just completed my rods last week also, not as nice as yours though. I haven't made the big end bearings yet, so I'll steal your method as I was wondering how to go about it - the main bearing gave me enough trouble to get right and I don't want to repeat that exercise 4 times.

 

[ddmckee54]

Michael:

My condolences. I know how you feel, my wife passed away in December 2011. You are apparently at least starting to deal with your loss since you are getting back into the shop. I won't say things will get better because I know that right now it sure doesn't feel better to you. But you'll at least get used to it, which makes it easier to get through the day.

Don

 

[Hopper]

Condolences from here too. I lost my wife earlier this year, after caring for her through illness for four years. It's a tough haul. It does get better though. And shed therapy is among the best. Keep up the good work. As Robert M Pirsig said in the book "Zen and the Art of Motorcycle Maintenance", when you are working on a motorcycle, what you are really working on is yourself. Same applies to model engineering for sure.

 

[michael-au]

A little bit more done
Turned the hubs off the gears

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Pistons and rods assembled

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Fixture was used to support the piston while the Wrist pin was pressed in

 

[Cogsy]

That is a thing of beauty Michael - the blue heads look incredible! I was going to ask about the fixture but you explained it. Are your wrist pins pressed into the rod or the piston?

I also see you had the same issue with the cam gear as I did, with the original grub screw hole not being completely machined away. It's a pain but at least it won't be seen when the engine is assembled and (to me) it's not worth the effort of boring the hub completely away and machining up a new one.

You must be running out of things to do before it's time to fire it up I'm guessing.

 

[michael-au]

Thanks Al
I pressed the pins in to the rods, i was going to make circlips to hold them in like i did with the silver bullet, but the pistons are smaller, and i thought it would be a bit hard to groove the hole

So I just decided to press them in to the rods, looks like it should be ok

I think i will just work on the fitting everything in the block and getting it to turn over smoothly
then finish the heads, the inlet manifold will be last

its slowly getting there

Michael

 

[Dubi]

Any chance to have someone Black Oxide instead of Gun Blue? Great work by the way.

 

[michael-au]

The bell housing is black
Not sure if that’s what you meant
That I should have some black parts

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Just put some together to see hoe it looks

 

[michael-au]

Rings done

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Lock tight the gear to crankshaft

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[Cogsy]

This is looking like the start of final assembly to me . That spacer string between the crank bearing and gear - isn't there supposed to be a seal in there? Have you got another sealing method? I ask because I still haven't been able to source crank seals yet.

 

[michael-au]

This is looking like the start of final assembly to me . That spacer string between the crank bearing and gear - isn't there supposed to be a seal in there? Have you got another sealing method? I ask because I still haven't been able to source crank seals yet.

Hi Al
The seal goes on the outside of the bearing

 

[Cogsy]

Ahh, so it goes outboard of the gear. That makes sense, so the gears get some lube too. I *should* have checked my plans...

 

[stevehuckss396]

Nice work so far! Plan to run 2 bearings on the rear of the crankshaft. It will lock the tail shaft in alignment with the bore and help support the crankshaft in the event the flywheel is a little out of balance.